sanguinity wrote Three Times Dr. Junito Vargas Fibbed for me! It is the Dr. Vargas fic of my HEEEEEEAAART! And I sort of, um, guessed it was them through exploiting an AO3 bug which lists even fandoms with anonymous stories under your profile. I saw they'd written one Noah's Arc story, and there were two in the challenge. Now, I could've been wrong, but, well...